Home / 891,324,602.20-1,336,986,903.30-431,309,272.60

Finding the Fourth Proportional to 891,324,602.20, 1,336,986,903.30 and 431,309,272.60

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Solution

The fourth proportional to 891,324,602.20, 1,336,986,903.30 and 431,309,272.60 is: 646,963,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,324,602.20 : 1,336,986,903.30 = 431,309,272.60 : x
  2. Step 2: Convert to fraction form
    891,324,602.20/1,336,986,903.30 = 431,309,272.60/x
  3. Step 3: Cross multiply
    891,324,602.20x = 1,336,986,903.30 × 431,309,272.60
  4. Step 4: Simplify right side
    891,324,602.20x = 576,654,848,738,049,536
  5. Step 5: Solve for x
    x = 576,654,848,738,049,536/891,324,602.20
  6. Step 6: Final answer
    x = 646,963,908.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.